Simpson Strong-Tie Pneumatic Dispensing Tool for 56 oz. Epoxy Cartridges EDTA56P Features an optional suitcase handle adapter for the ultimate in tool configuration and dispensing convenience Suitcase option enables easier and time-saving ground level doweling Heavy-Duty tool with custom; blow-molded plastic carrying case 1/4 -18 NPT male thread air supply attachment Recommended operating pressure is between 80 and 100 psi. Simpson Strong-Tie Pneumatic Dispensing Tool for 56 oz. Epoxy Cartridges EDTA56P